annotate mod_auth_dovecot/mod_auth_dovecot.lua @ 304:8f3499ae1e27

mod_admin_web: Fix initialisation code, undeclared variable and wrong event scope
author Matthew Wild <mwild1@gmail.com>
date Mon, 27 Dec 2010 15:07:16 +0000
parents cda4855863af
children 4c3abf1a9b5a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 -- Dovecot authentication backend for Prosody
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 --
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 -- Copyright (C) 2010 Javier Torres
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4 -- Copyright (C) 2008-2010 Matthew Wild
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 -- Copyright (C) 2008-2010 Waqas Hussain
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6 --
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local socket_unix = require "socket.unix";
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 local datamanager = require "util.datamanager";
270
853ae6ae87bf mod_auth_dovecot: Use correct module name for logger
Javier Torres <javitonino@gmail.com>
parents: 269
diff changeset
10 local log = require "util.logger".init("auth_dovecot");
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 local new_sasl = require "util.sasl".new;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 local nodeprep = require "util.encodings".stringprep.nodeprep;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 local base64 = require "util.encodings".base64;
267
76f3310ec113 mod_auth_dovecot: Use PID in handshake
Javier Torres <javitonino@gmail.com>
parents: 261
diff changeset
14 local pposix = require "util.pposix";
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 local prosody = _G.prosody;
271
05ea4abb664d mod_auth_dovecot: Load dovecot socket path form config
Javier Torres <javitonino@gmail.com>
parents: 270
diff changeset
17 local socket_path = module:get_option_string("dovecot_auth_socket", "/var/run/dovecot/auth-login");
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 function new_default_provider(host)
272
6b35c23664db mod_auth_dovecot: Use sequential (instead of fixed) id for messages
Javier Torres <javitonino@gmail.com>
parents: 271
diff changeset
20 local provider = { name = "dovecot", c = nil, request_id = 0 };
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 log("debug", "initializing dovecot authentication provider for host '%s'", host);
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
22
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
23 -- Closes the socket
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
24 function provider.close(self)
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
25 if (provider.c ~= nil) then
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
26 provider.c:close();
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
27 end
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
28 provider.c = nil;
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
29 end
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
30
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
31 -- The following connects to a new socket and send the handshake
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
32 function provider.connect(self)
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
33 -- Destroy old socket
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
34 provider:close();
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
36 provider.c = socket.unix();
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
38 -- Create a connection to dovecot socket
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
39 log("debug", "connecting to dovecot socket at '%s'", socket_path);
271
05ea4abb664d mod_auth_dovecot: Load dovecot socket path form config
Javier Torres <javitonino@gmail.com>
parents: 270
diff changeset
40 local r, e = provider.c:connect(socket_path);
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
41 if (not r) then
271
05ea4abb664d mod_auth_dovecot: Load dovecot socket path form config
Javier Torres <javitonino@gmail.com>
parents: 270
diff changeset
42 log("warn", "error connecting to dovecot socket at '%s'. error was '%s'. check permissions", socket_path, e);
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
43 provider:close();
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
44 return false;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
45 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
46
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 -- Send our handshake
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
48 local pid = pposix.getpid();
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
49 log("debug", "sending handshake to dovecot. version 1.1, cpid '%d'", pid);
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
50 if not provider:send("VERSION\t1\t1\n") then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
51 return false
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
52 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
53 if (not provider:send("CPID\t" .. pid .. "\n")) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
54 return false
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
55 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
56
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
57 -- Parse Dovecot's handshake
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 local done = false;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 while (not done) do
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
60 local l = provider:receive();
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
61 if (not l) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
62 return false;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
63 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
64
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
65 log("debug", "dovecot handshake: '%s'", l);
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 parts = string.gmatch(l, "[^\t]+");
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67 first = parts();
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68 if (first == "VERSION") then
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
69 -- Version should be 1.1
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
70 local v1 = parts();
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
71 local v2 = parts();
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
72
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
73 if (not (v1 == "1" and v2 == "1")) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
74 log("warn", "server version is not 1.1. it is %s.%s", v1, v2);
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
75 provider:close();
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
76 return false;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
77 end
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
78 elseif (first == "MECH") then
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
79 -- Mechanisms should include PLAIN
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
80 local ok = false;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
81 for p in parts do
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82 if p == "PLAIN" then
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
83 ok = true;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
84 end
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
85 end
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
86 if (not ok) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
87 log("warn", "server doesn't support PLAIN mechanism. It supports '%s'", l);
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
88 provider:close();
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
89 return false;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
90 end
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
91 elseif (first == "DONE") then
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
92 done = true;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
93 end
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
94 end
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
95 return true;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
96 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
97
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
98 -- Wrapper for send(). Handles errors
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
99 function provider.send(self, data)
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
100 local r, e = provider.c:send(data);
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
101 if (not r) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
102 log("warn", "error sending '%s' to dovecot. error was '%s'", data, e);
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
103 provider:close();
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
104 return false;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
105 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
106 return true;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
107 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
108
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
109 -- Wrapper for receive(). Handles errors
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
110 function provider.receive(self)
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
111 local r, e = provider.c:receive();
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
112 if (not r) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
113 log("warn", "error receiving data from dovecot. error was '%s'", socket, e);
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
114 provider:close();
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
115 return false;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
116 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
117 return r;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
118 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
119
274
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
120 function provider.send_auth_request(self, username, password)
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
121 if (provider.c == nil) then
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
122 if (not provider:connect()) then
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
123 return nil, "Auth failed. Dovecot communications error";
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
124 end
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
125 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
126
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
127 -- Send auth data
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
128 username = username .. "@" .. module.host; -- FIXME: this is actually a hack for my server
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
129 local b64 = base64.encode(username .. "\0" .. username .. "\0" .. password);
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
130 provider.request_id = provider.request_id + 1 % 4294967296
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
131
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
132 local msg = "AUTH\t" .. provider.request_id .. "\tPLAIN\tservice=XMPP\tresp=" .. b64;
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
133 log("debug", "sending auth request for '%s' with password '%s': '%s'", username, password, msg);
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
134 if (not provider:send(msg .. "\n")) then
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
135 return nil, "Auth failed. Dovecot communications error";
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
136 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
137
272
6b35c23664db mod_auth_dovecot: Use sequential (instead of fixed) id for messages
Javier Torres <javitonino@gmail.com>
parents: 271
diff changeset
138
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
139 -- Get response
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
140 local l = provider:receive();
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
141 log("debug", "got auth response: '%s'", l);
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
142 if (not l) then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
143 return nil, "Auth failed. Dovecot communications error";
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
144 end
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
145 local parts = string.gmatch(l, "[^\t]+");
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
146
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
147 -- Check response
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
148 local status = parts();
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
149 local resp_id = tonumber(parts());
274
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
150
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
151 if (resp_id ~= provider.request_id) then
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
152 log("warn", "dovecot response_id(%s) doesn't match request_id(%s)", resp_id, provider.request_id);
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
153 provider:close();
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
154 return nil, "Auth failed. Dovecot communications error";
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
155 end
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
156
274
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
157 return status, parts;
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
158 end
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
159
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
160 function provider.test_password(username, password)
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
161 log("debug", "test password '%s' for user %s at host %s", password, username, module.host);
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
162
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
163 local status, extra = provider:send_auth_request(username, password);
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
164
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
165 if (status == "OK") then
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
166 log("info", "login ok for '%s'", username);
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 return true;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168 else
273
8d283ae7f29d mod_auth_dovecot: More debug messages
Javier Torres <javitonino@gmail.com>
parents: 272
diff changeset
169 log("info", "login failed for '%s'", username);
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
170 return nil, "Auth failed. Invalid username or password.";
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 end
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172 end
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
173
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 function provider.get_password(username)
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175 return nil, "Cannot get_password in dovecot backend.";
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
176 end
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
177
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
178 function provider.set_password(username, password)
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
179 return nil, "Cannot set_password in dovecot backend.";
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
180 end
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
181
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182 function provider.user_exists(username)
274
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
183 log("debug", "user_exists for user %s at host %s", username, module.host);
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
184
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
185 -- Send a request. If the response (FAIL) contains an extra
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
186 -- parameter like user=<username> then it exists.
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
187 local status, extra = provider:send_auth_request(username, "");
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
188
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
189 local param = extra();
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
190 while (param) do
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
191 parts = string.gmatch(param, "[^=]+");
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
192 name = parts();
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
193 value = parts();
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
194 if (name == "user") then
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
195 log("info", "user '%s' exists", username);
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
196 return true;
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
197 end
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
198
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
199 param = extra();
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
200 end
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
201
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
202 log("info", "user '%s' does not exists (or dovecot didn't send user=<username> parameter)", username);
cda4855863af mod_auth_dovecot: Implement user_exists
Javier Torres <javitonino@gmail.com>
parents: 273
diff changeset
203 return false;
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204 end
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
205
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206 function provider.create_user(username, password)
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 return nil, "Cannot create_user in dovecot backend.";
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208 end
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
209
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
210 function provider.get_sasl_handler()
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 local realm = module:get_option("sasl_realm") or module.host;
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212 local getpass_authentication_profile = {
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
213 plain_test = function(username, password, realm)
268
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
214 local prepped_username = nodeprep(username);
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
215 if not prepped_username then
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
216 log("debug", "NODEprep failed on username: %s", username);
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
217 return "", nil;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
218 end
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
219 return usermanager.test_password(prepped_username, realm, password), true;
cfcd4efb0fa4 mod_auth_dovecot: Remove asserts (use logger) and refactor socket code
Javier Torres <javitonino@gmail.com>
parents: 267
diff changeset
220 end
269
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
221 };
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
222 return new_sasl(realm, getpass_authentication_profile);
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
223 end
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
224
74846ec9c29f mod_auth_dovecot: Close socket on error
Javier Torres <javitonino@gmail.com>
parents: 268
diff changeset
225 return provider;
261
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226 end
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227
0f46fb2dbc79 mod_auth_dovecot: Initial commit of Dovecot authentication backend by Javier Torres
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
228 module:add_item("auth-provider", new_default_provider(module.host));